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Re: setting an optimal value of gc-cons-threshold


From: Xavier Maillard
Subject: Re: setting an optimal value of gc-cons-threshold
Date: Mon, 10 Sep 2007 03:00:31 +0200
User-agent: Rmail in GNU Emacs 23.0.50.3 on GNU/Linux

   >    I found quite a few people in their .emacs setting gc-cons-threshold to
   >    a different value than the default 400000.
   > I did.
   >    I wonder if there is a guidance for setting this value.
   > So do I. I remember increasing it after several Gnus crashes but
   > I did it without reflexion on what value to put here :)

   There used to be some benefit to setting it higher for large Emacs sessions
   (where GC can take a long time) since it would reduce the frequency of those
   GCs.  In Emacs-22, this is not needed any more because of the new
   `gc-cons-percentage' variable which automatically causes the limit to grow
   as the Emacs process grows, thus preserving a more or less constant
   GC overhead.

Thank you Stefan for your clarifications.

        Xavier
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